Add tiny ASN1 code for DSA signatures.
[oweals/openssl.git] / fips-1.0 / sha / fips_sha512.c
1 /* crypto/sha/sha512.c */
2 /* ====================================================================
3  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved
4  * according to the OpenSSL license [found in ../../LICENSE].
5  * ====================================================================
6  */
7 #if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA512)
8 /*
9  * IMPLEMENTATION NOTES.
10  *
11  * As you might have noticed 32-bit hash algorithms:
12  *
13  * - permit SHA_LONG to be wider than 32-bit (case on CRAY);
14  * - optimized versions implement two transform functions: one operating
15  *   on [aligned] data in host byte order and one - on data in input
16  *   stream byte order;
17  * - share common byte-order neutral collector and padding function
18  *   implementations, ../md32_common.h;
19  *
20  * Neither of the above applies to this SHA-512 implementations. Reasons
21  * [in reverse order] are:
22  *
23  * - it's the only 64-bit hash algorithm for the moment of this writing,
24  *   there is no need for common collector/padding implementation [yet];
25  * - by supporting only one transform function [which operates on
26  *   *aligned* data in input stream byte order, big-endian in this case]
27  *   we minimize burden of maintenance in two ways: a) collector/padding
28  *   function is simpler; b) only one transform function to stare at;
29  * - SHA_LONG64 is required to be exactly 64-bit in order to be able to
30  *   apply a number of optimizations to mitigate potential performance
31  *   penalties caused by previous design decision;
32  *
33  * Caveat lector.
34  *
35  * Implementation relies on the fact that "long long" is 64-bit on
36  * both 32- and 64-bit platforms. If some compiler vendor comes up
37  * with 128-bit long long, adjustment to sha.h would be required.
38  * As this implementation relies on 64-bit integer type, it's totally
39  * inappropriate for platforms which don't support it, most notably
40  * 16-bit platforms.
41  *                                      <appro@fy.chalmers.se>
42  */
43 #include <stdlib.h>
44 #include <string.h>
45
46 #include <openssl/opensslconf.h>
47 #include <openssl/crypto.h>
48 #include <openssl/fips_sha.h>
49 #include <openssl/fips.h>
50 #include <openssl/opensslv.h>
51
52 #ifdef OPENSSL_FIPS
53
54 const char SHA512_version[]="SHA-512" OPENSSL_VERSION_PTEXT;
55
56 #if defined(_M_IX86) || defined(_M_AMD64) || defined(__i386) || defined(__x86_64)
57 #define SHA512_BLOCK_CAN_MANAGE_UNALIGNED_DATA
58 #endif
59
60 int SHA384_Init (SHA512_CTX *c)
61         {
62         c->h[0]=U64(0xcbbb9d5dc1059ed8);
63         c->h[1]=U64(0x629a292a367cd507);
64         c->h[2]=U64(0x9159015a3070dd17);
65         c->h[3]=U64(0x152fecd8f70e5939);
66         c->h[4]=U64(0x67332667ffc00b31);
67         c->h[5]=U64(0x8eb44a8768581511);
68         c->h[6]=U64(0xdb0c2e0d64f98fa7);
69         c->h[7]=U64(0x47b5481dbefa4fa4);
70         c->Nl=0;        c->Nh=0;
71         c->num=0;       c->md_len=SHA384_DIGEST_LENGTH;
72         return 1;
73         }
74
75 int SHA512_Init (SHA512_CTX *c)
76         {
77         c->h[0]=U64(0x6a09e667f3bcc908);
78         c->h[1]=U64(0xbb67ae8584caa73b);
79         c->h[2]=U64(0x3c6ef372fe94f82b);
80         c->h[3]=U64(0xa54ff53a5f1d36f1);
81         c->h[4]=U64(0x510e527fade682d1);
82         c->h[5]=U64(0x9b05688c2b3e6c1f);
83         c->h[6]=U64(0x1f83d9abfb41bd6b);
84         c->h[7]=U64(0x5be0cd19137e2179);
85         c->Nl=0;        c->Nh=0;
86         c->num=0;       c->md_len=SHA512_DIGEST_LENGTH;
87         return 1;
88         }
89
90 #ifndef SHA512_ASM
91 static
92 #endif
93 void sha512_block (SHA512_CTX *ctx, const void *in, size_t num);
94
95 int SHA512_Final (unsigned char *md, SHA512_CTX *c)
96         {
97         unsigned char *p=(unsigned char *)c->u.p;
98         size_t n=c->num;
99
100         p[n]=0x80;      /* There always is a room for one */
101         n++;
102         if (n > (sizeof(c->u)-16))
103                 memset (p+n,0,sizeof(c->u)-n), n=0,
104                 sha512_block (c,p,1);
105
106         memset (p+n,0,sizeof(c->u)-16-n);
107 #ifdef  B_ENDIAN
108         c->u.d[SHA_LBLOCK-2] = c->Nh;
109         c->u.d[SHA_LBLOCK-1] = c->Nl;
110 #else
111         p[sizeof(c->u)-1]  = (unsigned char)(c->Nl);
112         p[sizeof(c->u)-2]  = (unsigned char)(c->Nl>>8);
113         p[sizeof(c->u)-3]  = (unsigned char)(c->Nl>>16);
114         p[sizeof(c->u)-4]  = (unsigned char)(c->Nl>>24);
115         p[sizeof(c->u)-5]  = (unsigned char)(c->Nl>>32);
116         p[sizeof(c->u)-6]  = (unsigned char)(c->Nl>>40);
117         p[sizeof(c->u)-7]  = (unsigned char)(c->Nl>>48);
118         p[sizeof(c->u)-8]  = (unsigned char)(c->Nl>>56);
119         p[sizeof(c->u)-9]  = (unsigned char)(c->Nh);
120         p[sizeof(c->u)-10] = (unsigned char)(c->Nh>>8);
121         p[sizeof(c->u)-11] = (unsigned char)(c->Nh>>16);
122         p[sizeof(c->u)-12] = (unsigned char)(c->Nh>>24);
123         p[sizeof(c->u)-13] = (unsigned char)(c->Nh>>32);
124         p[sizeof(c->u)-14] = (unsigned char)(c->Nh>>40);
125         p[sizeof(c->u)-15] = (unsigned char)(c->Nh>>48);
126         p[sizeof(c->u)-16] = (unsigned char)(c->Nh>>56);
127 #endif
128
129         sha512_block (c,p,1);
130
131         if (md==0) return 0;
132
133         switch (c->md_len)
134                 {
135                 /* Let compiler decide if it's appropriate to unroll... */
136                 case SHA384_DIGEST_LENGTH:
137                         for (n=0;n<SHA384_DIGEST_LENGTH/8;n++)
138                                 {
139                                 SHA_LONG64 t = c->h[n];
140
141                                 *(md++) = (unsigned char)(t>>56);
142                                 *(md++) = (unsigned char)(t>>48);
143                                 *(md++) = (unsigned char)(t>>40);
144                                 *(md++) = (unsigned char)(t>>32);
145                                 *(md++) = (unsigned char)(t>>24);
146                                 *(md++) = (unsigned char)(t>>16);
147                                 *(md++) = (unsigned char)(t>>8);
148                                 *(md++) = (unsigned char)(t);
149                                 }
150                         break;
151                 case SHA512_DIGEST_LENGTH:
152                         for (n=0;n<SHA512_DIGEST_LENGTH/8;n++)
153                                 {
154                                 SHA_LONG64 t = c->h[n];
155
156                                 *(md++) = (unsigned char)(t>>56);
157                                 *(md++) = (unsigned char)(t>>48);
158                                 *(md++) = (unsigned char)(t>>40);
159                                 *(md++) = (unsigned char)(t>>32);
160                                 *(md++) = (unsigned char)(t>>24);
161                                 *(md++) = (unsigned char)(t>>16);
162                                 *(md++) = (unsigned char)(t>>8);
163                                 *(md++) = (unsigned char)(t);
164                                 }
165                         break;
166                 /* ... as well as make sure md_len is not abused. */
167                 default:        return 0;
168                 }
169
170         return 1;
171         }
172
173 int SHA384_Final (unsigned char *md,SHA512_CTX *c)
174 {   return SHA512_Final (md,c);   }
175
176 int SHA512_Update (SHA512_CTX *c, const void *_data, size_t len)
177         {
178         SHA_LONG64      l;
179         unsigned char  *p=c->u.p;
180         const unsigned char *data=(const unsigned char *)_data;
181
182         if(FIPS_selftest_failed())
183                 return 0;
184
185         if (len==0) return  1;
186
187         l = (c->Nl+(((SHA_LONG64)len)<<3))&U64(0xffffffffffffffff);
188         if (l < c->Nl)          c->Nh++;
189         if (sizeof(len)>=8)     c->Nh+=(((SHA_LONG64)len)>>61);
190         c->Nl=l;
191
192         if (c->num != 0)
193                 {
194                 size_t n = sizeof(c->u) - c->num;
195
196                 if (len < n)
197                         {
198                         memcpy (p+c->num,data,len), c->num += len;
199                         return 1;
200                         }
201                 else    {
202                         memcpy (p+c->num,data,n), c->num = 0;
203                         len-=n, data+=n;
204                         sha512_block (c,p,1);
205                         }
206                 }
207
208         if (len >= sizeof(c->u))
209                 {
210 #ifndef SHA512_BLOCK_CAN_MANAGE_UNALIGNED_DATA
211                 if ((size_t)data%sizeof(c->u.d[0]) != 0)
212                         while (len >= sizeof(c->u))
213                                 memcpy (p,data,sizeof(c->u)),
214                                 sha512_block (c,p,1),
215                                 len  -= sizeof(c->u),
216                                 data += sizeof(c->u);
217                 else
218 #endif
219                         sha512_block (c,data,len/sizeof(c->u)),
220                         data += len,
221                         len  %= sizeof(c->u),
222                         data -= len;
223                 }
224
225         if (len != 0)   memcpy (p,data,len), c->num = (int)len;
226
227         return 1;
228         }
229
230 int SHA384_Update (SHA512_CTX *c, const void *data, size_t len)
231 {   return SHA512_Update (c,data,len);   }
232
233 void SHA512_Transform (SHA512_CTX *c, const unsigned char *data)
234 {   sha512_block (c,data,1);  }
235
236 unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
237         {
238         SHA512_CTX c;
239         static unsigned char m[SHA384_DIGEST_LENGTH];
240
241         if (md == NULL) md=m;
242         SHA384_Init(&c);
243         SHA512_Update(&c,d,n);
244         SHA512_Final(md,&c);
245         OPENSSL_cleanse(&c,sizeof(c));
246         return(md);
247         }
248
249 unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
250         {
251         SHA512_CTX c;
252         static unsigned char m[SHA512_DIGEST_LENGTH];
253
254         if (md == NULL) md=m;
255         SHA512_Init(&c);
256         SHA512_Update(&c,d,n);
257         SHA512_Final(md,&c);
258         OPENSSL_cleanse(&c,sizeof(c));
259         return(md);
260         }
261
262 #ifndef SHA512_ASM
263 static const SHA_LONG64 K512[80] = {
264         U64(0x428a2f98d728ae22),U64(0x7137449123ef65cd),
265         U64(0xb5c0fbcfec4d3b2f),U64(0xe9b5dba58189dbbc),
266         U64(0x3956c25bf348b538),U64(0x59f111f1b605d019),
267         U64(0x923f82a4af194f9b),U64(0xab1c5ed5da6d8118),
268         U64(0xd807aa98a3030242),U64(0x12835b0145706fbe),
269         U64(0x243185be4ee4b28c),U64(0x550c7dc3d5ffb4e2),
270         U64(0x72be5d74f27b896f),U64(0x80deb1fe3b1696b1),
271         U64(0x9bdc06a725c71235),U64(0xc19bf174cf692694),
272         U64(0xe49b69c19ef14ad2),U64(0xefbe4786384f25e3),
273         U64(0x0fc19dc68b8cd5b5),U64(0x240ca1cc77ac9c65),
274         U64(0x2de92c6f592b0275),U64(0x4a7484aa6ea6e483),
275         U64(0x5cb0a9dcbd41fbd4),U64(0x76f988da831153b5),
276         U64(0x983e5152ee66dfab),U64(0xa831c66d2db43210),
277         U64(0xb00327c898fb213f),U64(0xbf597fc7beef0ee4),
278         U64(0xc6e00bf33da88fc2),U64(0xd5a79147930aa725),
279         U64(0x06ca6351e003826f),U64(0x142929670a0e6e70),
280         U64(0x27b70a8546d22ffc),U64(0x2e1b21385c26c926),
281         U64(0x4d2c6dfc5ac42aed),U64(0x53380d139d95b3df),
282         U64(0x650a73548baf63de),U64(0x766a0abb3c77b2a8),
283         U64(0x81c2c92e47edaee6),U64(0x92722c851482353b),
284         U64(0xa2bfe8a14cf10364),U64(0xa81a664bbc423001),
285         U64(0xc24b8b70d0f89791),U64(0xc76c51a30654be30),
286         U64(0xd192e819d6ef5218),U64(0xd69906245565a910),
287         U64(0xf40e35855771202a),U64(0x106aa07032bbd1b8),
288         U64(0x19a4c116b8d2d0c8),U64(0x1e376c085141ab53),
289         U64(0x2748774cdf8eeb99),U64(0x34b0bcb5e19b48a8),
290         U64(0x391c0cb3c5c95a63),U64(0x4ed8aa4ae3418acb),
291         U64(0x5b9cca4f7763e373),U64(0x682e6ff3d6b2b8a3),
292         U64(0x748f82ee5defb2fc),U64(0x78a5636f43172f60),
293         U64(0x84c87814a1f0ab72),U64(0x8cc702081a6439ec),
294         U64(0x90befffa23631e28),U64(0xa4506cebde82bde9),
295         U64(0xbef9a3f7b2c67915),U64(0xc67178f2e372532b),
296         U64(0xca273eceea26619c),U64(0xd186b8c721c0c207),
297         U64(0xeada7dd6cde0eb1e),U64(0xf57d4f7fee6ed178),
298         U64(0x06f067aa72176fba),U64(0x0a637dc5a2c898a6),
299         U64(0x113f9804bef90dae),U64(0x1b710b35131c471b),
300         U64(0x28db77f523047d84),U64(0x32caab7b40c72493),
301         U64(0x3c9ebe0a15c9bebc),U64(0x431d67c49c100d4c),
302         U64(0x4cc5d4becb3e42b6),U64(0x597f299cfc657e2a),
303         U64(0x5fcb6fab3ad6faec),U64(0x6c44198c4a475817) };
304
305 #ifndef PEDANTIC
306 # if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
307 #  if defined(__x86_64) || defined(__x86_64__)
308 #   define PULL64(x) ({ SHA_LONG64 ret=*((const SHA_LONG64 *)(&(x)));   \
309                                 asm ("bswapq    %0"             \
310                                 : "=r"(ret)                     \
311                                 : "0"(ret)); ret;               })
312 #  endif
313 # endif
314 #endif
315
316 #ifndef PULL64
317 #define B(x,j)    (((SHA_LONG64)(*(((const unsigned char *)(&x))+j)))<<((7-j)*8))
318 #define PULL64(x) (B(x,0)|B(x,1)|B(x,2)|B(x,3)|B(x,4)|B(x,5)|B(x,6)|B(x,7))
319 #endif
320
321 #ifndef PEDANTIC
322 # if defined(_MSC_VER)
323 #  if defined(_WIN64)   /* applies to both IA-64 and AMD64 */
324 #   define ROTR(a,n)    _rotr64((a),n)
325 #  endif
326 # elif defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
327 #  if defined(__x86_64) || defined(__x86_64__)
328 #   define ROTR(a,n)    ({ unsigned long ret;           \
329                                 asm ("rorq %1,%0"       \
330                                 : "=r"(ret)             \
331                                 : "J"(n),"0"(a)         \
332                                 : "cc"); ret;           })
333 #  elif defined(_ARCH_PPC) && defined(__64BIT__)
334 #   define ROTR(a,n)    ({ unsigned long ret;           \
335                                 asm ("rotrdi %0,%1,%2"  \
336                                 : "=r"(ret)             \
337                                 : "r"(a),"K"(n)); ret;  })
338 #  endif
339 # endif
340 #endif
341
342 #ifndef ROTR
343 #define ROTR(x,s)       (((x)>>s) | (x)<<(64-s))
344 #endif
345
346 #define Sigma0(x)       (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39))
347 #define Sigma1(x)       (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41))
348 #define sigma0(x)       (ROTR((x),1)  ^ ROTR((x),8)  ^ ((x)>>7))
349 #define sigma1(x)       (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6))
350
351 #define Ch(x,y,z)       (((x) & (y)) ^ ((~(x)) & (z)))
352 #define Maj(x,y,z)      (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
353
354 #ifdef OPENSSL_SMALL_FOOTPRINT
355
356 static void sha512_block (SHA512_CTX *ctx, const void *in, size_t num)
357         {
358         const SHA_LONG64 *W=in;
359         SHA_LONG64      a,b,c,d,e,f,g,h,s0,s1,T1,T2;
360         SHA_LONG64      X[16];
361         int i;
362
363                         while (num--) {
364
365         a = ctx->h[0];  b = ctx->h[1];  c = ctx->h[2];  d = ctx->h[3];
366         e = ctx->h[4];  f = ctx->h[5];  g = ctx->h[6];  h = ctx->h[7];
367
368         for (i=0;i<16;i++)
369                 {
370 #ifdef B_ENDIAN
371                 T1 = X[i] = W[i];
372 #else
373                 T1 = X[i] = PULL64(W[i]);
374 #endif
375                 T1 += h + Sigma1(e) + Ch(e,f,g) + K512[i];
376                 T2 = Sigma0(a) + Maj(a,b,c);
377                 h = g;  g = f;  f = e;  e = d + T1;
378                 d = c;  c = b;  b = a;  a = T1 + T2;
379                 }
380
381         for (;i<80;i++)
382                 {
383                 s0 = X[(i+1)&0x0f];     s0 = sigma0(s0);
384                 s1 = X[(i+14)&0x0f];    s1 = sigma1(s1);
385
386                 T1 = X[i&0xf] += s0 + s1 + X[(i+9)&0xf];
387                 T1 += h + Sigma1(e) + Ch(e,f,g) + K512[i];
388                 T2 = Sigma0(a) + Maj(a,b,c);
389                 h = g;  g = f;  f = e;  e = d + T1;
390                 d = c;  c = b;  b = a;  a = T1 + T2;
391                 }
392
393         ctx->h[0] += a; ctx->h[1] += b; ctx->h[2] += c; ctx->h[3] += d;
394         ctx->h[4] += e; ctx->h[5] += f; ctx->h[6] += g; ctx->h[7] += h;
395
396                         W+=SHA_LBLOCK;
397                         }
398         }
399
400 #else
401
402 #define ROUND_00_15(i,a,b,c,d,e,f,g,h)          do {    \
403         T1 += h + Sigma1(e) + Ch(e,f,g) + K512[i];      \
404         h = Sigma0(a) + Maj(a,b,c);                     \
405         d += T1;        h += T1;                } while (0)
406
407 #define ROUND_16_80(i,a,b,c,d,e,f,g,h,X)        do {    \
408         s0 = X[(i+1)&0x0f];     s0 = sigma0(s0);        \
409         s1 = X[(i+14)&0x0f];    s1 = sigma1(s1);        \
410         T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f];    \
411         ROUND_00_15(i,a,b,c,d,e,f,g,h);         } while (0)
412
413 static void sha512_block (SHA512_CTX *ctx, const void *in, size_t num)
414         {
415         const SHA_LONG64 *W=in;
416         SHA_LONG64      a,b,c,d,e,f,g,h,s0,s1,T1;
417         SHA_LONG64      X[16];
418         int i;
419
420                         while (num--) {
421
422         a = ctx->h[0];  b = ctx->h[1];  c = ctx->h[2];  d = ctx->h[3];
423         e = ctx->h[4];  f = ctx->h[5];  g = ctx->h[6];  h = ctx->h[7];
424
425 #ifdef B_ENDIAN
426         T1 = X[0] = W[0];       ROUND_00_15(0,a,b,c,d,e,f,g,h);
427         T1 = X[1] = W[1];       ROUND_00_15(1,h,a,b,c,d,e,f,g);
428         T1 = X[2] = W[2];       ROUND_00_15(2,g,h,a,b,c,d,e,f);
429         T1 = X[3] = W[3];       ROUND_00_15(3,f,g,h,a,b,c,d,e);
430         T1 = X[4] = W[4];       ROUND_00_15(4,e,f,g,h,a,b,c,d);
431         T1 = X[5] = W[5];       ROUND_00_15(5,d,e,f,g,h,a,b,c);
432         T1 = X[6] = W[6];       ROUND_00_15(6,c,d,e,f,g,h,a,b);
433         T1 = X[7] = W[7];       ROUND_00_15(7,b,c,d,e,f,g,h,a);
434         T1 = X[8] = W[8];       ROUND_00_15(8,a,b,c,d,e,f,g,h);
435         T1 = X[9] = W[9];       ROUND_00_15(9,h,a,b,c,d,e,f,g);
436         T1 = X[10] = W[10];     ROUND_00_15(10,g,h,a,b,c,d,e,f);
437         T1 = X[11] = W[11];     ROUND_00_15(11,f,g,h,a,b,c,d,e);
438         T1 = X[12] = W[12];     ROUND_00_15(12,e,f,g,h,a,b,c,d);
439         T1 = X[13] = W[13];     ROUND_00_15(13,d,e,f,g,h,a,b,c);
440         T1 = X[14] = W[14];     ROUND_00_15(14,c,d,e,f,g,h,a,b);
441         T1 = X[15] = W[15];     ROUND_00_15(15,b,c,d,e,f,g,h,a);
442 #else
443         T1 = X[0]  = PULL64(W[0]);      ROUND_00_15(0,a,b,c,d,e,f,g,h);
444         T1 = X[1]  = PULL64(W[1]);      ROUND_00_15(1,h,a,b,c,d,e,f,g);
445         T1 = X[2]  = PULL64(W[2]);      ROUND_00_15(2,g,h,a,b,c,d,e,f);
446         T1 = X[3]  = PULL64(W[3]);      ROUND_00_15(3,f,g,h,a,b,c,d,e);
447         T1 = X[4]  = PULL64(W[4]);      ROUND_00_15(4,e,f,g,h,a,b,c,d);
448         T1 = X[5]  = PULL64(W[5]);      ROUND_00_15(5,d,e,f,g,h,a,b,c);
449         T1 = X[6]  = PULL64(W[6]);      ROUND_00_15(6,c,d,e,f,g,h,a,b);
450         T1 = X[7]  = PULL64(W[7]);      ROUND_00_15(7,b,c,d,e,f,g,h,a);
451         T1 = X[8]  = PULL64(W[8]);      ROUND_00_15(8,a,b,c,d,e,f,g,h);
452         T1 = X[9]  = PULL64(W[9]);      ROUND_00_15(9,h,a,b,c,d,e,f,g);
453         T1 = X[10] = PULL64(W[10]);     ROUND_00_15(10,g,h,a,b,c,d,e,f);
454         T1 = X[11] = PULL64(W[11]);     ROUND_00_15(11,f,g,h,a,b,c,d,e);
455         T1 = X[12] = PULL64(W[12]);     ROUND_00_15(12,e,f,g,h,a,b,c,d);
456         T1 = X[13] = PULL64(W[13]);     ROUND_00_15(13,d,e,f,g,h,a,b,c);
457         T1 = X[14] = PULL64(W[14]);     ROUND_00_15(14,c,d,e,f,g,h,a,b);
458         T1 = X[15] = PULL64(W[15]);     ROUND_00_15(15,b,c,d,e,f,g,h,a);
459 #endif
460
461         for (i=16;i<80;i+=8)
462                 {
463                 ROUND_16_80(i+0,a,b,c,d,e,f,g,h,X);
464                 ROUND_16_80(i+1,h,a,b,c,d,e,f,g,X);
465                 ROUND_16_80(i+2,g,h,a,b,c,d,e,f,X);
466                 ROUND_16_80(i+3,f,g,h,a,b,c,d,e,X);
467                 ROUND_16_80(i+4,e,f,g,h,a,b,c,d,X);
468                 ROUND_16_80(i+5,d,e,f,g,h,a,b,c,X);
469                 ROUND_16_80(i+6,c,d,e,f,g,h,a,b,X);
470                 ROUND_16_80(i+7,b,c,d,e,f,g,h,a,X);
471                 }
472
473         ctx->h[0] += a; ctx->h[1] += b; ctx->h[2] += c; ctx->h[3] += d;
474         ctx->h[4] += e; ctx->h[5] += f; ctx->h[6] += g; ctx->h[7] += h;
475
476                         W+=SHA_LBLOCK;
477                         }
478         }
479
480 #endif
481
482 #endif /* SHA512_ASM */
483
484 #endif
485
486 #endif /* OPENSSL_NO_SHA512 */
487